#include<stdio.h>
#include<string.h>

int vowel(char ch);
int main()
{
	int num_eng=0,length_words,num_input=0;
	char ch,words[1000];
	while((ch=getchar())!='\n')
	{
		words[num_input]=ch;
		num_input++;
	}
	words[num_input]='\0';
	
	length_words=strlen(words);
	for(int i=0;i<length_words;i++)
	{
		if(vowel(words[i]))
		{
			num_eng++;
		}
	}
	printf("%d",num_eng);
	
	return 0;
}
int vowel(char ch)
{
	if(ch=='a'||ch=='e'||ch=='i'||ch=='o'||ch=='u'||ch=='A'||ch=='E'||ch=='I'||ch=='O'||ch=='U')
	{
		return 1;
	}
	else
	{
		return 0;
	}
}
